Buckwheat mine, Franklin, New Jersey, USA - Classic material from one of the world's most famous mining districts. This specimen hosts a grey black octahedral franklinite crystal of 1.4 cm in size on massive white calcite matrix. Very nice. Overall size is 2.6 × 2 × 1.6 cm

Sweetwater  Mine, Missouri, USA - Colorless to very pale yellowish translucent semi-lustrous prismatic crystals of calcite to 3.7 cm in length set attractively over the top of a 9.5 x 5.5 x 5.0 cm pyrite, chalcopyrite, and dolomite crystal matrix. Very minimal micro-cleaving present, this is in very good condition and sits very nicely by itself for display.

Brushy Creek Mine, Viburnum Trend, Reynolds Co., Missouri, USA - Various yellowish translucent double terminated calcite crystal to 1. cm in length show upon a breccia matrix with crude iridescent purplish blue crystals of chalcopyrite to 0.3-0.4 cm. In very good condition as seen. Size: 13 x 7.5 x 2.0 cm.

Fletcher mine, Viburnum Trend, Reynolds Co., Missouri, USA - Nice biterminated calcite crystal of 2.7 cm sits on a galena rich matrix ! The galenas are up to 0.5-0.8 cm. Nice 3x3x3 cm rock

Elmwood mine, Smith Co., Tennessee, USA - Bright gemmy biterminated calcite crystal of 4 cm in size stands on a crystalline matrix of sphalerite ! The sphalerite crystals are up to 1 cm. Overall size is 6x6x4.5 cm

Fletcher mine, Viburnum Trend, Reynolds Co., Missouri, USA - A classic calcite specimen from this locality. The calcite is biterminated and 2.8 cm in size and sits on a matrix formed by a rich coating of chalcopyrites and dolomite with siegenite ! Nice combination specimen of 3.5x3.5x3 cm

SHABA PROVINCE, CONGO - Nice coverage of bright pink/purple cobaltocalcite crystals up to 0.5 cm in size. Nice color and display ! Overall size is 8x5x3 cm

Sweetwater Mine, Viburnum Trend District, Reynolds Co., Missouri, USA - Very nice cluster of terminated calcite crystals on a coat of tiny dolomites and chalcopyrites. The calcite are all terminated and 2.5-3.5 cm in size. Overall size is 8x2.5x1.8 cm

Sweetwater Mine, Viburnum Trend District, Reynolds Co., Missouri, USA - Well shaped bi-terminated calcite crystal of 3.7 cm stands on this matrix coated by dolomite and chalcopyrite crystals. Nice rock of 8x3.7x1.8 cm

OSILO QUARRY, SASSARI, SARDEGNA, ITALY - Nice pink facolite crystals on calcite and quartz coating. The facolites are up to 0.6 cm. Overall size is 5x4x3 cm